Différences

Ci-dessous, les différences entre deux révisions de la page.

--- sunfluidh:species_initialization_namelist [2016/10/08 17:14] – créée yann
+++ sunfluidh:species_initialization_namelist [2016/11/28 17:41] (Version actuelle) – [Namelist Species_Initialization] yann
@@ Ligne 1: / Ligne 1: @@
 ===== Namelist "Species_Initialization" =====
-This data setup is used to define the initial field of species mass fraction over the domain.\\
+__** Not for the release SUNFLUIDH_EDU**__ .\\
+This data set is used to define the initial field of species mass fractions over the domain.\\
+If the gas mixture is homogeneous (none species gradient), this data set could be omitted.
+===== Full data set of the namelist =====
+Example for a gas mixture with two species
+    &Species_Initialization   Initial_Field_Option_For_Species= 0  1,
+                              Species_Reference_Value         = 1 /
+-----
+===== Definition of the data set =====
 -----
 ==== Species_Reference_Value ====
-   * Type : real value
+   * Type : allocatable array of real values. The size of the array is automatically defined in respect with the number of species considered.
    * Reference mass fraction of species.
+   * Default values must be set by the user. The order of data must match with the order in which the species properties (see the namelist [[sunfluidh:species_properties_namelist|"Species_Properties"]]) are written in the data file.
+<note important> Be careful. In the case of low MAch number flows, the user must ensure the coherence between the reference values of physical quantities defined in the namelist [[sunfluidh:fluid_properties_namelist|"Fluid_Properties"]] (temperature, density and molecular mass), the initial temperature field over the domain (see the namelist [[sunfluidh:temperature_initialization_namelist| "Temperature_Initialization"]]) and the species mass fractions defined here.\\
+Keep in mind that the reference value of thermodynamic pressure is calculated from the reference values of temperature, density and molecular mass of the fluid (see namelist [[sunfluidh:fluid_properties_namelist|"Fluid_Properties"]]) . \\ The density field is then initialized from the fields of temperature and species mass fractions by considering the thermodynamic pressure is uniform over the domain (low Mach-number hypothesis).</note>
 ==== Initial_Field_Option_For_species  ====
@@ Ligne 10: / Ligne 26: @@
    * Option to define the distribution of the species mass fraction over the domain :
      * 0 : Uniform distribution
-     * 1 or greater : Optional values associated to the field of species mass fraction defined by the users in the appropriate fortran module (see module_user_define_init_fields.f90). The reference value can be used to define the species mass fraction scale.
+     * 1 or greater : Optional values associated to the field of species mass fraction defined by the user in the appropriate fortran module (see module_user_define_init_fields.f90).\\ The reference value can be used to define the species mass fraction scale.
+     * Default value= 0